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std::tuple::swap

Da cppreference.com.
< cpp‎ | utility‎ | tuple

 
 
Utilità libreria
Tipo di supporto (basic types, RTTI, type traits)
Gestione della memoria dinamica
La gestione degli errori
Programma di utilità
Funzioni variadic
Data e ora
Funzione oggetti
initializer_list(C++11)
bitset
hash(C++11)
Gli operatori relazionali
Original:
Relational operators
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rel_ops::operator!=
rel_ops::operator>
rel_ops::operator<=
rel_ops::operator>=
Coppie e tuple
Original:
Pairs and tuples
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pair
tuple(C++11)
piecewise_construct_t(C++11)
piecewise_construct(C++11)
Swap, in avanti e spostare
Original:
Swap, forward and move
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swap
forward(C++11)
move(C++11)
move_if_noexcept(C++11)
declval(C++11)
 
std::tuple
Membri funzioni
Original:
Member functions
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tuple::tuple
tuple::operator=
tuple::swap
Non membri funzioni
Original:
Non-member functions
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make_tuple
tie
forward_as_tuple
None
operator=
operator!=
operator<
operator<=
operator>
operator>=
std::swap
get
Helper classi
Original:
Helper classes
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tuple_size
tuple_element
uses_allocator
ignore
 
Defined in header <tuple>
void swap( tuple& other );
(dal C++11)
Chiede std::swap per ogni elemento in *this e il suo elemento corrispondente in other.
Original:
Calls std::swap for each element in *this and its corresponding element in other.
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Indice

[modifica] Parametri

other -
tupla di valori da scambiare
Original:
tuple of values to swap
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[modifica] Valore di ritorno

(Nessuno)
Original:
(none)
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[modifica] Eccezioni

noexcept specification:  (dal C++11)
noexcept(

    noexcept(swap(std::declval<T0&>>(), std::declval<T0&>())) &&
    noexcept(swap(std::declval<T1&>>(), std::declval<T1&>())) &&
    noexcept(swap(std::declval<T2&>>(), std::declval<T2&>())) &&
    ...

)

[modifica] Esempio

#include <iostream>
#include <tuple>
#include <string>
 
int main()
{
    std::tuple<int, std::string, float> p1, p2;
    p1 = std::make_tuple(10, "test", 3.14);
    p2.swap(p1);
    std::cout << "("  << std::get<0>(p2)
              << ", " << std::get<1>(p2)
              << ", " << std::get<2>(p2) << ")\n";
}

Output:

(10, test, 3.14)

[modifica] Vedi anche